Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
Differentiate term by term:
Apply the power rule: goes to
The derivative of the constant is zero.
The result is:
The result of the chain rule is:
Now simplify:
The answer is:
2 -3*x --------- 2 / 3 \ \x - 1/
/ 3 \ | 3*x | 6*x*|-1 + -------| | 3| \ -1 + x / ------------------ 2 / 3\ \-1 + x /
/ 6 3 \ | 27*x 18*x | 6*|-1 - ---------- + -------| | 2 3| | / 3\ -1 + x | \ \-1 + x / / ----------------------------- 2 / 3\ \-1 + x /